Comparison of morphological characters in Irish and English populations of the acanthocephalan Pomphorhynchus laevis (Müller, 1776)

Autor:	Elaine O’Mahony, Celia V. Holland, C. R. Kennedy
Rok vydání:	2004
Předmět:	Male Principal Component Analysis Hook Trout Cyprinidae Anatomy Biology biology.organism_classification Acanthocephala Proboscis (genus) Leuciscus England Animal ecology Animals Female Microscopy Phase-Contrast Parasitology Pomphorhynchus laevis Salmo Ireland
Zdroj:	Systematic Parasitology. 59:147-157
ISSN:	1573-5192 0165-5752
DOI:	10.1023/b:sypa.0000044431.21210.f3
Popis:	Pomphorhynchus laevis is believed on ecological evidence to exist as three strains in the British Isles. However, the strains have never been shown to be capable of being distinguished using morphological characters. A morphological comparison was made between a sample of P. laevis from Salmo trutta in L. Feeagh in the west of Ireland and a sample from Leuciscus cephalus in R. Culm in the south of England. The length and width of the trunk, neck, bulb, proboscis and hooks were measured. The number of hooks per row, the number of rows and the positions of the stoutest and longest hooks were also recorded. A Principal Components Analysis based on the morphological measurements confirmed the separation of the two populations and showed that two characters successfully identified the populations: the position of the stoutest hook and the ratio of numbers of anterior to posterior hooks.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12b2b23c20852d2e2825db4c7530f2ed https://doi.org/10.1023/b:sypa.0000044431.21210.f3 Zobrazit plný text záznamu Full text from SpringerLink